
.re{
    position: relative;
}
.logo{
    width: 200px;
    left:300px;
    top: 10px;
    position: absolute;
}
.app-header-nav {
   
  width: 1000px;
  margin: 0 auto;
  height: 132px;
  line-height: 132px;
  color:#666;
  display: flex;
  justify-content: space-around;
  padding-left: 40px;
  position: relative;
  z-index: 999;
}
  .app-header-nav > li {
    margin-right: 40px;

    text-align: center;
  }
  .app-header-nav > li > a {
      font-size: 16px;
      line-height: 32px;
      height: 32px;
       color:#666;

    }
    .app-header-nav > li > a:hover {
  
        color: #27BA9B;
        border-bottom: 1px solid #27BA9B;
      }

.layer {  
    width: 1240px;
  background-color: #fff;
  position: absolute;
  left: -100px;

  height: 0;
  overflow: hidden;
  opacity: 0;
  box-shadow: 0 0 5px #ccc;
  transition: all .2s .1s;
}
  .open {
    height: 132px;
    opacity: 1;
  }

  .layer  ul {
    display: flex;
    flex-wrap: wrap;
    padding: 0 70px;
    align-items: center;
    height: 132px;
  }
  .layer  ul li {
      width: 110px;
      text-align: center;
      line-height: 1;
  }
  .layer  ul li   img {
        width: 60px;
        height: 60px;
      }
      .layer  ul li    p {
        padding-top: 10px;
      }
      .layer p:hover  {
    
          color:#27BA9B;
        
      }

